Case report: Clinicopathological characteristic of two cases of primary endometrial squamous cell carcinoma and review of the literature.

Primary endometrial squamous cell carcinoma (PESCC) is a rare malignant tumor. To investigate the clinical and pathological features of PESCC, two cases of PESCC in Fujian Maternal and Child Health Hospital were retrospectively studied and the literatures were reviewed. Both of the two cases were menopausal women aged 57-62 years, clinically presenting with "vaginal discharge". Case 1 was a non-keratinising squamous cell carcinoma with high-risk HPV infection. Tumor infiltrated in deep myometrium with multifocal intravascular thrombus and macro metastases to one pelvic lymph node (1/15) and abdominal aortic lymph node (1/1). Lung metastasis occurred 36 months after the surgery. After surgical resection and without postoperative supplemental therapy, the patient remained tumor-free for 110 months to date. Case 2 had a history of breast cancer for 5 years and long-term intake of aromatase inhibitor drugs without HPV infection. It was a keratinized squamous cell carcinoma. Tumor also infiltrated in deep myometrium with multifocal intravascular thrombus and one pelvic lymph node metastasis (1/18), However, no metastasis was seen elsewhere. To date, the patient survived for 16 months without tumor after surgery. Both of the two cases expressed squamous epithelial markers P40, P63, and CK5/6, but neither expressed PAX8 or PR. Case 1 had diffuse expression of P16, wild-type P53, and ER-negative. Case 2 had negative P16, mutant P53, and focal positive ER. PESCC is often associated with HPV infection and low estrogen levels. However, studies in the literatures have found that P16 expression is not always consistent with HPV infection, indicating that PESCC cannot be easily classified as HPV-associated or non-dependent like cervical cancer. There are two main patterns of P16 and P53 expression, P16-positive/P53 wild-type and P16-negative/P53-mutant, but no positive expression of both has been seen so far. It is worth noting that we reported the second case of PESCC with a history of breast cancer, where the patient had been taking the oral aromatase inhibitor drug (exemestane) for a long period of time to reduce the estrogen level, indicating the low estrogen level may be also a key factor in the pathogenesis of PESCC.

[Clinical study on the effect of acupuncture on pregnancy outcome in patients with prethrombotic infertility after repeated implantation failure].

OBJECTIVE: To observe the effect of acupuncture combined with medication on the pregnancy outcome of kidney deficiency and blood stasis type recurrent implantation failure (RIF) in prethrombotic infertility patients. METHODS: A total of 70 RIF patients of kidney deficiency and blood stasis type who were to undergo freeze-thaw embryo transplantation were randomly divided into control and treatment groups, with 35 cases in each group. Patients in the control group were given the basic treatment of artificial periodic freeze-thaw embryo transfer and oral aspirin enteric-coated tablet, 25 mg each time, twice a day, for 3 consecutive menstrual cycles. Patients in the treatment group were treated with acupuncture on the basis of the control group, 30 min each time, 3 times a week, for 3 consecutive menstrual cycles. The clinical pregnancy rate, embryo implantation rate and live birth rate of the two groups were compared. Before treatment and 1 day before transplantation, the scores of kidney deficiency and blood stasis symptom were compared. The blood flow pulse index (PI) and resistance index (RI) of the uterus spiral artery were detected by Doppler ultrasound before treatment and 1 day before transplantation. The endometrial thickness was detected 1 day before transplantation. The contents of plasma D-dimer, serum homocysteine (Hcy) and serum thromboxane B2 (TXB2) were detected. RESULTS: The clinical pregnancy rate, embryo implantation rate and live birth rate in the treatment group were higher than those in the control group (P<0.05). After treatment, the scores of kidney deficiency and blood stasis symptom, the levels of plasma D-dimer, serum Hcy and TXB2, the PI and RI value in both groups were decreased (P<0.05) compared with those before treatment, and the indexes in the treatment group were decreased (P<0.05) more than those in the control group. There was no significant difference in endometrial thickness between the two groups. In the course of treatments, 7 patients in the control group underwent gastric distension pain, poor appetite, constipation, nausea and other gastrointestinal reactions, while only 2 patients in the treatment group had the above discomfort reactions. CONCLUSION: On the basis of medication, acupuncture can reduce the serum TXB2 content in RIF patients in prethrombotic state, improve vascular endothelial function, enhance endometrial tolerance, alleviate the symptoms of kidney deficiency and blood stasis, reduce drug adverse reactions, and ultimately improve the pregnancy outcome and increase the rate of embryo implantation.

[Effects of auricular thumbtack needle on lactation function and TDP-43/Btn1A1/XDH pathway in primiparous women with cesarean section].

OBJECTIVE: To observe the effects of auricular thumbtack needle on breast feeding and lactation function in primiparous women with cesarean section, and to explore its mechanism of action from the perspective of lactation-related gene expression. METHODS: One hundred cases of primiparous women with cesarean section were randomly divided into an observation group (50 cases, 3 cases dropped off) and a control group (50 cases, 2 cases were eliminated). The patients in the control group were treated with routine obstetric care. Based on the treatment of the control group, the patients in the observation group were treated with auricular thumbtack needle at Neifenmi (CO18), Xiong (AH10), Xiongzhui (AH11), Shenmen (TF4), and Jiaogan (AH6a), etc., with one side of auricular point selected, only once for a total of 3 d. The lactation initiation time, lactation adequacy rate at postpartum 72 h, exclusive breastfeeding rate at postpartum 42 d, and breastfeeding score after treatment were compared between the two groups. Real-time quantitative PCR and Western blot method were used to detect the mRNA and protein expression levels of TDP-43, Btn1A1 and XDH. RESULTS: After treatment, the lactation initiation time in the observation group was earlier than that in the control group (P<0.01), and breastfeeding score in the observation group was higher than that in the control group (P<0.01). The lactation adequacy rate at postpartum 72 h was 63.8% (30/47) in the observation group, which was higher than 41.7% (20/48) in the control group (P<0.05). The exclusive breastfeeding rate at postpartum 42 d was 72.3% (34/47) in the observation group, which was higher than 47.9% (23/48) in the control group (P<0.05). The mRNA and protein expression levels of TDP-43 and Btn1A1 in breast milk in the observation group were higher than those in the control group (P<0.01), while there was no statistically significant difference in mRNA and protein expression of XDH in breast milk between the two groups (P>0.05). CONCLUSION: The auricular thumbtack needle in addition to routine care could promote lactation initiation, improve lactation adequacy rate and exclusive breastfeeding rate in primiparous women with cesarean section, and the action mechanism may be related to up-regulation of TDP-43 and Btn1A1 expression.

[Effect of acupuncture on vascular endothelial function in patients of polycystic ovary syndrome with different glucose tolerance status].

OBJECTIVE: To observe the effect of acupuncture on vascular endothelial function in patients of polycystic ovary syndrome (PCOS) with impaired glucose tolerance (IGT) and normal glucose tolerance (NGT). METHODS: A total of 140 patients with PCOS were divided into an IGT group (70 cases, 11 dropped off) and a NGT group (70 cases, 9 cases dropped off). The patients in the two groups were treated with full-cycle acupuncture at Zhongwan (CV 12), Guanyuan (CV 4), Qihai (CV 6), Tianshu (ST 25), etc. once every other day, 3 times a week, for 3 months. Before and after treatment, TCM symptom score, insulin resistance index [including fasting plasma glucose (FPG), 2-hour blood glucose (2hPG), fasting serum insulin (FINS), homeostasis model assessment of insulin resistance (HOMA-IR)] and vascular endothelial related factors [including asymmetric dimethylarginine (ADMD), endothelin-1 (ET-1), malondialdehyde (MDA), nitric oxide (NO)] were compared between the two groups; in addition, the obese subgroup and non-obese subgroup of the two groups were further compared. RESULTS: Compared before treatment, the TCM symptom scores, ADMD, ET-1 and MDA after treatment were decreased (P<0.05), and NO was increased (P<0.05) in the two groups; FPG, 2hPG, FINS and HOMA-IR after treatment were decreased in the IGT group (P<0.05), the improvement of the above indexes in the IGT group was more significant than that in the NGT group (P<0.05). After treatment, the serum levels of ADMD, ET-1 and MDA were decreased (P<0.05), and NO was increased (P<0.05) in the obese subgroup. In the IGT group, the improvement of serum ADMD, ET-1, MDA and NO in the obese subgroup was more significant than that in the non-obese subgroup (P<0.05). In the NGT group, the improvement of ET-1, MDA and NO in the obese subgroup was more significant than that in the non-obese subgroup (P<0.05). CONCLUSION: Acupuncture could improve vascular endothelial function in PCOS patients, IGT patients have better efficacy than NGT patients, and obese patients have better efficacy than non-obese patients.

[Effect of combined treatment with acupuncture, moxibustion and medication on endometrial receptivity and expression of serum HOXA10 in polycystic ovary syndrome of kidney deficiency and blood stagnation].

OBJECTIVE: To compare the clinical effect of the combined treatment of acupuncture, moxibustion, Chinese herbal medicine and western medication and simple western medication on polycystic ovary syndrome (PCOS) of kidney deficiency and blood stagnation pattern and explore the effect on endometrial receptivity and the expression of serum homeobox gene A10 (HOXA10). METHODS: A total of 60 patients with PCOS of kidney deficiency and blood stagnation pattern were randomized into a combined treatment group and a western medication group, 30 cases in each one. In the western medication group, on the fifth day of menstruation, clomiphene citrate tablets were taken orally, 50 mg each time, once daily, consecutively for 5 days. On the day when the follicle diameter was ≥ 18 mm, chorionic gonadotrophin for muscular injection, a dose of 10 000 U was given. Before sleep, the aspirin enteric-coated tablets were taken orally, 50 mg (except during menstruation). In the combined treatment group, on the base of the treatment as the western medication group, acupuncture and moxibustion were adopted and the Chinese herbal for tonifying the kidney and activating blood circulation was taken orally. The acupoints were Guanyuan (CV 4), Qihai (CV 6), Zusanli (ST 36), Sanyinjiao (SP 6), Zigong (EX-CA 1), etc. Acupuncture was remained for 30 min each time, once every two days and discontinued during menstruation. Chinese herbal was given from the 3rd day of menstruation till the onset of the next menstruation, one dose each day. After consecutive treatment for 3 menstrual cycles in the two groups, the real-time polymerase chain reaction (RT-PCR) method was adopted to determine the expression of serum HOXA10 before and after treatment in the patients of the two groups. The endometrial thickness at ovulatory phase, uterine arterial flow 7 days after ovulation [including uterine arterial pulsatility index (PI), resistance index (RI), peak systolic velocity (PSV)/end diastolic velocity (EDV), meaning S/D], pregnancy rate and the score of Chinese medicine symptoms before and after treatment were compared in the patients between the two groups. RESULTS: ① After treatment, the expression of serum HOXA10 was higher than that before treatment in the patients of the two groups (P<0.01). The increase range in the combined treatment group was larger than the western medication group (P<0.01). ② After treatment, the endometrial thickness at the ovulatory phase was increased in the patients of the two groups (P<0.01). The increase range of the endometrial thickness in the combined treatment group was larger than the western medication group (P<0.01). ③ The pregnancy rate was 46.7% (14/30) in the combined treatment group, higher than 26.7% (8/30) in the western medication group (P<0.05). ④ After treatment, the bilateral uterine arterial PI, RI and S/D values, as well as TCM symptom score were all lower than those before treatment in the patients of the two groups (P<0.01). The decrease range of each index in the combined treatment group was greater than the western medication group (P<0.01, P<0.05). CONCLUSION: The combined treatment with acupuncture, moxibustion and medication effectively improves endometrial receptivity and uterine arterial flow in the patients with PCOS of kidney deficiency and blood stagnation pattern and increases pregnancy rate. The therapeutic effect is better than the simple western medication and its mechanism is probably related to the regulation of serum HOXA10 expression.

[The determination of chromium in feeds by flame atomic absorption spectrophotometry].

Chromium in feeds is regulated by China Standard GB 13078-2001. A method of flame atomic absorption spectrophotometry for the determination of Cr in feeds has been developed in allusion to shortage of China standard method. Several acetylene flow-rate, burner-high and the additive of interference suppressor NH4Cl were studied respectively on the effect of sensitivities of Cr(III) and Cr(VI). The two sets analytical average results of Cr in feed sample determined by calibration curves of Cr(III) and Cr(VI) were tested by t test, no marked discrepancy was found. Optimum instrumental conditions of Cr(III) and Cr(VI) with same sensitivity were confirmed. Sensitivity was 0.014 microg x mL(-1) with detection limit 0.70 mg x kg(-1). The recoveries were 94.4%-104.9%. Relative standard deviation of sample determination (5-6 times) was 1.90%-4.08%. This method is simply, fast and exact, the detection limit was answered for Cr limit in feeds regulated by GB 13078-2001, it can be applied to the analysis of Cr in feeds.